posted by Kayla .
In four of the following groups, the three
substances are either all strong electrolytes,
all weak electrolytes, or all nonelectrolytes.
Which group has one member which is NOT
like the others in the group?
1. BaCl2; NaNO3; HF
2. O2; CO(NH2)2; CH3OH
3. NaCl; Ca(OH)2; HNO3
4. NH3; CH3COOH; HCN
5. H2SO4; NaOH; HCl